Tip
When Vayne closes in with Tumble (Q), engage with your Boomerang Blade [Q] and basic attack-Ricochet[W] combo, but always keep an eye out for the stacks on Silver Bolts (W).
Sivir vs Vayne

When Vayne closes in with Tumble (Q), engage with your Boomerang Blade [Q] and basic attack-Ricochet[W] combo, but always keep an eye out for the stacks on Silver Bolts (W).